Brumby and Willum, two male koalas who are now at home at the Brookfield Zoo’s Hamill Family Play Zoo made their first public appearance at the zoo on Tuesday, June 18, 2024.The koalas were born at the San Diego Zoo and brought to Brookfield Zoo June 10. Brumby and Willum are the first koalas to take residence at the Brookfield Zoo in its 90-year history.